The 2007 BMW X3 runs on premium unleaded (required).
The 2007 BMW Z4 runs on premium unleaded (required).
The 2007 BMW M5 runs on premium unleaded (required).
The 2007 BMW M6 runs on premium unleaded (required).
The 2007 BMW X5 runs on premium unleaded (required).
The 2007 BMW Alpina-B7 runs on premium unleaded (required).
The 2007 BMW 3-Series runs on premium unleaded (required).
The 2007 BMW 5-Series runs on premium unleaded (required).
The 2007 BMW 6-Series runs on premium unleaded (required).
BMW series are the type of sedans that they have. 1 series, 3 series, 4 series, 5 series, 7series
It was intraduced in 1978. Read more at http://www.edmunds.com/bmw/7series/review.html
If the 2001 7series bmw's are similar to the 1998 7series, it's located between the driver side headlamp and the power steering reservoir in the engine compartment. Of course it's cylinder shaped and you can't miss it.